This function calculates the sigma for the spongeLayer from treeid for the polynomial order n6. Sponge profile: where, \sigma_A - sponge strength, L - thickness, x0 - start of sponge.
Type | Intent | Optional | Attributes | Name | ||
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type(tem_spongeLayer_radial_type) | :: | me |
Spatial sponge layer to evaluate |
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integer(kind=long_k), | intent(in) | :: | treeIds(n) |
treeIds of elements in given level |
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type(treelmesh_type), | intent(in) | :: | tree |
global treelm mesh |
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integer, | intent(in) | :: | nDim |
Dimension |
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integer, | intent(in) | :: | n |
Number of arrays to return |
return value
function spongeLayer_radial_polyn6_for_treeids(me, treeids, tree, nDim, n) &
& result(res)
! --------------------------------------------------------------------------
!> Spatial sponge layer to evaluate
type(tem_spongeLayer_radial_type) :: me
!> Number of arrays to return
integer, intent(in) :: n
!> global treelm mesh
type( treelmesh_type ), intent(in) ::tree
!> treeIds of elements in given level
integer(kind=long_k), intent(in) :: treeIds(n)
!> Dimension
integer, intent(in) :: nDim
!> return value
real(kind=rk) :: res(n)
! --------------------------------------------------------------------------
integer :: i
real(kind=rk) :: rad, outer_radius, sigma, vec(3), coord(3)
real(kind=rk) :: const_fac
! --------------------------------------------------------------------------
outer_radius = me%radius + me%thickness
vec = 0.0_rk
const_fac = 729_rk/(16_rk*me%thickness**6)
do i = 1,n
!barycentric coordinate
coord = tem_BaryOfId( tree, treeIds(i) )
vec(1:nDim) = coord(1:nDim) - me%origin(1:nDim)
rad = sqrt( vec(1)**2 + vec(2)**2 + vec(3)**2 )
if (rad > me%radius) then
sigma = const_fac * (outer_radius - rad)**2 * (rad - me%radius)**4
res(i) = min(1.0_rk, sigma) * me%dampFactor
else
res(i) = 0.0_rk
end if
end do
end function spongeLayer_radial_polyn6_for_treeids